Javelin

• US 5,267,735 A
• Filed: 10/05/1992
• Issued: 12/07/1993
• Est. Priority Date: 10/05/1992
• Status: Expired due to Term

• Current Assignee: Earl K. Bushman
• Original Assignee: Earl K. Bushman
• Inventors: Bushman, Earl K.
• Primary Examiner(s): Grieb, William H.
• Application Number:
  US07/956,166
• Time in Patent Office: 428 Days
• Field of Search: 482/20, 273/416, 273/419, 273/420, 273/422, 273/423, 273/428
• US Class Current: 473/586
• CPC Class Codes: F42B 6/003 Darts

Abstract

The javelin is a hand-thrown toy having a tubular fuselage. Mounted on the forward end of the fuselage are four canard planes, and mounted adjacent the rear of the fuselage are four tail planes. The forward surfaces and rear surfaces are each at a right angle and straight with respect to the fuselage to prevent spinning. The forward and rear surfaces are positioned at 45 degrees with respect to each other. The surfaces are sized as compared to fuselage length and weight so that the javelin flies level without spinning. A soft nose ring attached to the forward end of the fuselage prevents damaging impact.

Claims

1. A javelin comprising:

an elongated fuselage of substantially uniform cross section, said fuselage being tubular, said fuselage having a longitudinal axis and said fuselage having a forward end and a rear end;

at least four canard planes secured to said fuselage adjacent its forward end, said canard planes being substantially equi-angularly spaced around said axis; and

at least four tail planes attached to said fuselage adjacent its rear end, said tail planes being substantially equi-angularly spaced around said fuselage, each of said canard planes and each of said tail planes substantially intersecting said axis so that said javelin does not spin on its axis in flight, and each of said canard planes being positioned around said fuselage at an angle which substantially bisects the angle between two adjacent of said tail planes.

2. The javelin of claim 1 wherein the area at each of the canard planes is about 40 to 45 percent of the area of said tail planes.

3. The javelin of claim 1 wherein the length ratio of each of said planes is about 57 to 59 percent.

4. The javelin of claim 1 further including a nose ring on the forward end of said fuselage, said nose ring being made of soft material to absorb impact, said nose ring having an opening therein in line with said tubular opening through said fuselage.

5. The javelin of claim 4 wherein said nose ring has a skirt thereon, said skirt having slots therein to receive corresponding canard planes.

6. A javelin comprising:

an elongated fuselage of substantially uniform cross section, said fuselage being tubular, said fuselage having a longitudinal axis and said fuselage having a forward end and a rear end;

at least four canard planes secured to said fuselage adjacent its forward end, said canard planes being substantially equi-angularly spaced around said axis; and

at least four tail planes attached to said fuselage adjacent its rear end, said tail planes being substantially equi-angularly spaced around said fuselage, a nose ring on the forward end of said fuselage, said nose ring being made of soft material to absorb impact, said nose ring having an opening therein in line with said tubular opening through said fuselage to permit air flow through said nose ring and said fuselage.

7. The javelin of claim 6 wherein said nose ring has a skirt thereon, said skirt having slots therein to receive corresponding canard planes.

8. The javelin of claim 7 wherein each of said canard planes and each of said tail planes substantially intersect said axis so that said javelin does not spin on its axis in flight.

9. The javelin of claim 7 wherein each of said canard planes is positioned around said fuselage at an angle which substantially bisects the angle between two adjacent of said tail planes.

10. The javelin of claim 9 wherein the area at each of the canard planes is about 40 to 45 percent of the area of said tail planes.

11. The javelin of claim 10 wherein the length ratio of each of said planes is about 57 to 59 percent.

12. A javelin comprising:

a fuselage, said fuselage being tubular and being of substantially uniform cross section, said tubular fuselage having a forward end and a rear end, said tube of said tubular fuselage being open throughout its length from said forward end to its rearward end, said fuselage being substantially straight and having an axis;

four canard planes attached to said fuselage adjacent its forward end, each of said canard planes being substantially planar and each being of substantially the same size and shape and each of said canard planes lying substantially on said axis; and

four tail planes attached to said fuselage adjacent its rear end, each of said tail planes being substantially planar and each being of substantially the same size and shape, said tail planes being larger than said canard planes and each of said tail planes lying substantially on said axis so that said javelin does not spin in flight, said canard planes and said tail planes each being substantially equi-angularly spaced around said axis.

13. The javelin of claim 12 wherein said canard planes are each positioned at an angle around said axis so as to substantially bisect the angle between adjacent said tail planes.

14. The javelin of claim 12 wherein said tail planes define the diagonals of a square and said canard planes are equal in radius to the sides of the same square.

15. The javelin of claim 12 wherein the area at each of the canard planes is about 40 to 45 percent of the area of said tail planes.

16. The javelin of claim 15 wherein the length ratio of each of said planes is about 57 to 59 percent.

17. The javelin of claim 12 wherein said fuselage is made of synthetic polymer composition material and said planes are made of synthetic polymer composition material, with said planes being of softer material than said fuselage.

18. The javelin of claim 17 wherein said canard surfaces extend forward of said forward end of said fuselage so that said canard planes impact first upon a target to soften the impact of said fuselage.

19. The javelin of claim 18 further including a nose ring on said forward end of said fuselage, said nose ring having an opening therein corresponding to and in line with said tubular opening in said fuselage, said nose ring being made of material softer than said canard planes to soften impact.

20. The javelin of claim 19 wherein said canard planes and said tail planes are each substantially equi-angularly spaced around said axis.

21. The javelin of claim 20 wherein said canard planes is are each positioned at an angle around said axis so as to substantially bisect the angle between said tail planes.

22. The javelin of claim 21 wherein said tail planes define the diagonals of a square and said canard planes are equal in radius to the sides of the same square.